<?php
class ExpressionService extends BaseDbService
{
	public function __construct()
	{
		$this->dao	= new BaseDao('user');
	}
	
	public static function getExpression()
	{
		$settings = C('LtCache')->get('esxpression');
		if($settings === false)
		{
			$con = array();
			$con['type'] = 'qq';
			$settings = $this->getList($con);
			if(!empty($settings))
			{
				C('LtCache')->update('esxpression', $settings);
			}
		}
		return $settings
	}
	
	
}